Systems: Elimination and Substitution

Solve the following system of equations algebraically using substitution method.

• (-1, 1)

• (1, -1)

• (0, 1)

• (1, 0)

Solve the following system of equations algebraically using substitution method.

• (-1, -1)

• (2, -1)

• (-1, 2)

• (-1, -2)

Solve the following system of equations algebraically using substitution method.

• (-3, 0)

• (3, 0)

• (-3, -3)

• (3, 3)

Solve the following system of equations algebraically using substitution method.

• (4, 5)

• (4, -5)

• (-4, -5)

• (-5, -4)

What does the second equation need to be multiplied by to get the y's to eliminate?

• 5

• 0

• -1

• 2

• (0, -4)

• (2, 4)

• No solution 

• (2, 0)

Solve by elimination:
4x+4y=4

3x+4y=10

• (7,-6)

• (-6,7)

• (6,7)

• (7,6)

y = -6x + 5
-2x + y = 5

• (-3, -6)

• (-6, 3)

• (0, 5)

• (-3, 5)

3x + y = 1
y = 4x + 1

• (0, -1)

• No Solution

• (0, 8)

• (0, 1)

x + 2y = 2
x = -4y + 2

• (-3, 0)

• (0, 2)

• (-3, -2)

• (2, 0)